Summary:

CaesarShiftCipher_v1.0.0_2019 is my implementation of an early Roman method of cryptography called the Caesar Shift Cipher. It works by shifting the letters of a message by an agreed number. The recipient of the message will shift the letters back by the same amount and will be able to obtain the original message.

Operation:

• Run the project to start the application.
• You will be prompted to select one of two modes, Encryption or Decryption
• Each mode has been allocated a fixed number. 1 is for Encryption and 2 is for Decryption. Once you have decided which mode you want, type it into the terminal and press the Enter key on your keyboard.
• Next you will be prompted to enter a message string. Paste or type in the appropriate plain text or encrypted text, depending on which mode you have selected.
• Finally, you will be prompted for a shift amount.
• Once you have provided the program with everything it needs, it will either Encrypt or Decrypt the text and the result will be printed in the terminal window.

TODO:

• The project currently only supports encryption of letters of the alphabet. I will expand to numbers and too later.
• Main function needs refactoring